BS ISO 4706:2023
$167.15
Gas cylinders. Refillable welded steel cylinders. Test pressure 60 bar and below
Published By | Publication Date | Number of Pages |
BSI | 2023 | 42 |
PDF Catalog
PDF Pages | PDF Title |
---|---|
2 | undefined |
7 | Foreword |
8 | Introduction |
9 | 1 Scope 2 Normative references |
10 | 3 Terms, definitions and symbols 3.1 Terms and definitions |
11 | 3.2 Symbols |
12 | 4 Inspection and testing 5 Materials 5.1 General |
13 | 5.2 Chemical composition 6 Design 6.1 General requirements |
14 | 6.2 Valve protection 6.3 Design of openings 7 Calculation of minimum wall thickness (sidewall and ends) 7.1 Sidewall thickness |
15 | 7.2 Design of ends concave to pressure |
18 | 8 Construction and workmanship 8.1 Welding qualification 8.1.1 General |
19 | 8.1.2 Base materials (pressure and non-pressure) 8.1.3 Positions of welds 8.1.4 Welding materials 8.1.5 Retesting 8.1.6 Period of effectiveness 8.1.7 Changes to welding process requiring recertification |
20 | 8.1.8 Welder qualification tests 8.1.9 Results of welder qualification 8.2 Plates and pressed parts 8.3 Welded joints |
22 | 8.4 Tolerances 8.4.1 Out of roundness 8.4.2 Straightness |
23 | 8.4.3 Verticality 8.5 Non-pressure-containing attachments 8.6 Valve protection 8.7 Closure of openings 8.8 Heat treatment |
24 | 9 Testing 9.1 Mechanical testing 9.1.1 General requirements 9.1.2 Types of test and evaluation of test results |
28 | 9.2 Burst test under hydraulic pressure 9.2.1 Test conditions 9.2.2 Interpretation of test 9.2.3 Volumetric expansion |
29 | 9.3 Pressure test 9.4 Radiographic and macro examination 9.4.1 Radiographic examination |
30 | 9.4.2 Macro examination 9.4.3 Examination of flange welding 9.4.4 Examination of welding of non-pressure containing attachments 9.4.5 Unacceptable imperfections at radiographic or macro examination 9.5 Visual examination of the surface of the weld |
31 | 10 Acceptance criteria |
32 | 11 Type approval |
33 | 12 Batch tests 12.1 Inspection lots 12.2 Rate of sampling |
34 | 12.3 Quantity ≤ 3 000 cylinders water capacity less than or equal to 35 l 12.4 Quantity over 3 001 cylinders water capacity greater than 35 l 12.5 Failure to meet batch test requirements |
35 | 13 Test/examinations for all pressure cylinders 14 Markings 15 Certificate |
36 | Annex A (informative) New design type approval certificate |
38 | Annex B (informative) Acceptance certificate |
40 | Bibliography |